The universe can be described in terms of

The universe can be defined as

Matter characteristics

Matter has dimensions means

Matter has inertia means

Matter causes gravitational attraction means

According to its limits, matter can be classified into

Bodies are

Material systems are

According to their size, bodies and material systems

Multiples and submultiples in the International System

Matter is made up of

Atoms size is

Atoms of the same kind
form a

Atoms can form two types of substances

Pure substances are characterized by

According to their composition, pure substances can be

Elements can be found in nature as

In atomic elements, atoms can be

We call molecular element to an element in which

Compounds can be found in nature as

A change is

Change implies interaction between

Any change implies an exchange of

Some changes imply an exchange of

According to what they can exchange with their surroundings, material systems can be classified into

The way to transfer energy without trasferring matter is

Changes can be classified into